Reviews Hss Twist Drills

Qjaiune 25mm/1″ Carbide Hole Saw Drill Bit Heavy Duty TCT Hole Cutter for Stainless Steel, Sheet Metal, FRP & Wood

High quality material: This 1in hole saw is made of Tungsten Carbide (TCT hole saws), especially design for cutting alloy and stainless steel materials, extremely durability for any tough material, at least 10 times longer life than bi-metal and HSS hole cutters.
Smooth & clean cutting: The spring loaded pilot bit ejects the cut slug, saving time. The cutter body then cuts a clean, burr-free hole faster than conventional twist drills or hole saws, cuts quick, precise holes in a variety of materials.
All in one design: Drill bit, spring, wrench are included, no need to buy any extra accessories for the drilling works, make your job more convenient and easier.
Application: usage on home and industrial plants, such as in heating, ventilation and air conditioning demand an enduring hole saw that delivers a precise cut into high quality stainless steel..
Purchase Guarantee: Please rest assured to buy our hole saw. If you are not satisfied with the product, we provide a 100% money back guarantee within 90 days.

【Various Functionse】Drill set Includes 1 * hand drill, 25 * twist drill bits, 10 * PCB mini drills. Hand Drill and twist drills are made of high-speed steel, PCB mini drills made of tungsten carbide, offer superior performance and are easy to use..
【Ingenious Design】Pen-shaped hand drills for ease of carrying and storage. Precisely designed chuck to keep that drill upright, Ability to easily rotate vice head to adjust the clamp for different size drill bits..
【10 Pcs Colorful Mini drills】10 sizes: 0.1-1 mm, PCB mini drills the average of 38 mm in length, professionally designed for processing PCB, SMT, CNC, circuit boards, carbon fibre, composite boards, common FR-4, CEM-3 boards, etc..
【Extremely Versatile】25 Pcs Twist drill bits have 12 different sizes to satisfied your different demand: 0.5mm / 0.6mm / 1.0mm / 1.2mm / 1.5mm / 1.8mm / 2.0mm / 2.35mm / 3.0mm, is perfect for drilling a small hole on wood, plastic, rubber, walnut, model, bones, horns, amber, olives, and other materials, jewelry, plastic, and many other DIY projects..

【Step Drills and Cone Drill】3 piece 5/9/14 step drills (4-12/20/32mm) and 1 piece cone drill (8-20mm). Laser marking of step size provide convenient and accurate drilling.
【Countersink Drill Bits】6 piece countersink drill bits: 6.3, 8.3, 10.4, 12.4, 16.5, 20.5mm - 90° point, three cutting edges, ideal for deep countersinking.
【High Quality】All drills are HSS Titanium coated, come with 1/4" (6.35mm) hex shank, and are precision ground, heat treatment, and hardened for consistently accurate drilling or enlarging holes into sheet & non-ferrous metals, wood and plastics.
【Multi-Drill Saw & Center Punch】Multi drill saw (6mm) can be used in combination with drills, saws, rotary files, reamers and routers. Automatic brass center punch provides high impact spring-loaded strike when pressed against working surface.
striking force is adjustable by turning cap.
【Ergonomic Storage Box】Insert hex shank into black plastic holder at 10°-15° first, then push head of product down to fix firmly. Box can be re-used to store other tools by taking out foam inlay.

Sufficient and Comprehensive Hand Drill Tools: you will get 49 pieces of manual hand drills, including 1 piece of big pin vise, 48 pieces of small twist drill bits, available in various diameters and lengths, and 10 pieces of tungsten carbide micro drill bits, a total of 59 pieces, adequate and various to satisfy your crafting needs in daily life.
Sturdy and Reliable Material for Lasting Service: the big pin vise hand drill is made of quality aluminum alloy, compact and hard wearing.
The PCB mini drills adopt reliable tungsten carbide, and the micro twist drills are made of alloy steel, hardly rusting or deforming, can be applied repeatedly, serving you for a long time.
A Variety of Functions and Occasions: there are diverse functions for the mini twist drill bits, for example, they can help you a lot in carving, sculpting, drilling, doing well in handling wood, plastic, carbon fiber, composite board, cloth, rubber, bone, glass, stone and more, moreover, the rotary tool vises can process, SMT, PCB, normal FR-4, CEM-3 boards, CNC and so on, improving your working efficiency.
Multiple Sizes for You to Choose: measuring approx. 3.5 inch/ 89 mm in length, the pen drilling vise adopts a 3 claws chuck, equipped with an adjustable clamp, can be adjusted from 0....

Specification - 10Pcs 3mm cobalt drill bits, each kit contains a total of ten drill bits in the same size, Blade length: 33mm/1.3inch, 135 degree point, straight shank..
Material - HSS Cobalt high speed steel for super abrasive resistance in tough metals, improve much higher heat resistance because of cobalt steel's high red hardness..
Durable - HSS Cobalt Drill Bit provide strong durable performance compared to typical hss drill bits..
Easy to Carry - The twist drill bits are housed in plastic case for easy storage, easy to carry out homework..
Multi-purpose Use - HSS Drill Bits are successful in cutting hard metals such as stainless steel, copper, aluminum alloy, and also can be used for softer materials..

Specification – 10Pcs 4mm cobalt drill bits, each kit contains a total of ten drill bits in the same size, Blade length: 43mm/1.7inch, 118 degree point, straight shank..
Material – HSS Cobalt high speed steel for super abrasive resistance in tough metals, improve much higher heat resistance because of cobalt steel’s high red hardness..
Durable – HSS Cobalt Drill Bit provide strong durable performance compared to typical hss drill bits..
Easy to Carry – The twist drill bits are housed in plastic case for easy storage, easy to carry out homework..
Multi-purpose Use – HSS Drill Bits are successful in cutting hard metals such as stainless steel, copper, aluminum alloy, and also can be used for softer materials..

Spotting drill bit creates a pilot hole to reduce walking and improve hole accuracy.
Solid carbide drills produce close-tolerance holes in hard materials, and have a longer tool life at higher speeds than cobalt and high-speed steel (HSS).
Uncoated (bright) finish has no additional surface treatment or coating.
120-degree conventional point drills a pilot hole to accurately guide a 118-degree secondary drill bit.
Round shank accommodates most drill chucks.